Cord or padding material



Jan. 25, 1944. w. E. sAcKNER CORD OR PADDING MATERIAL Filed Dec. 18, 1942 v IN V EN TOR. Wan/e Z', Jac/ner BY @MMM y vention is clearly illustrated in Patented Jan. 25, 19.44

CORD R PADDING MATERIAL Wade E. Sackner, Grand Rapids, Mich., assignor to Grand Rapids Fibre Cord Company, Grand Rapids, Mich.

Application December 18, 1942, Serial No. 469,407

(o1. sv-s) 1 claim.

This invention relates to improvements in cord or padding material.

The main objects of this invention are:

First, vto provide an improved core or beading material which is highly resilient and at the same time light in weight, strong and durable, and readily shaped or conformed to the desired installation.

Second, to provide a resilient core or beading material which is adapted for a wide range of uses. i

Third, to provide a core or illler or beading ma' terial having the above advantages which may be rapidly and economically produced.

Objects relating to details and economies of the invention will definitely appear from the descriptioiiim to follow. The invention is defined in the c a Material which embodies the features of-the inthe accompanying drawing, in which:v

Fig. 1 is a fragmentary side view of a rope-like unit of core material embodying the invention.

` 'Fig. 2 is an enlarged fragmentary view illustrating the character of the resilient strand component of my invention and the relation of a preferred form of covering thereto.

Fig. 3 is a sectional view on line 3-3 of Fig. 2.

Fig. 4 is an enlarged side elevation of one of the resilient strands showing the relation of the resilient air cells to each other in the strand.

Fig. 5 is a fragmentary side view of a modified form of core or nller material embodying my in-` vention.

The embodiment of the invention illustrated in Figs. 1, 2 and 3 comprises a plurality of strands I of resilient material disposed in side by side generally parallel relation. Each strand comprises and the particular uses to which it isto be put.

In the embodiment illustrated in Fig. 1 the strands I of the bundle are bound together by the braided thread or cord open mesh covering l. This braided covering is in sumciently tight or binding relation to the bundle of strands so that it eiectively binds the strandsin place and preferably under substantially compacted or in compressed relation providing a rope-like unit. The initial compacting of the strands is at least suillcient to prevent material shifting of the` strands in the unit without destroying the resiliency thereof and permitting the core or iiller material to be manipulated to the shape of the object in which it is to be used.

In Fig. 5 the strands I form a core for a surrounding body 5 of fibrous material, a braided or other outer covering B being provided on this fibrous layer. Theembodiment of the invention illustrated in Fig. 5 is desirable for use where a core or illler of substantial dimensions is desired.

Ihe material I is cheaper than the material I.

Core material produced as described has the advantage of being very light in weight, of relatively high resilience, and at the same time possesses very considerable tensile strength It is f lexibleand readily 'adapted to a wide variety of uses where core material or beading is employed. I have found that the du Pont product commercialiyknown as Bubblill is well adapted for use as the strands I, vIt should be understood that I use the designation "cellulose material" in its broad meaning.

I have illustrated and described the invention in embodiments which I consider very practical.

a plurality of elongated resilient air cells 2 inte- :rally connected end to end or in linked relation vby the relatively short connections I. These strands are formed oi cellulose material suitably compounded andtreated or manipulated to Provide the strands I in desired lengths as integral strands. In a suitable embodiment of the invention these air cells are of circular sectionI and at l the larger diameter are of the Aorder of It will be understood, of course, that the dimensions of the air cells m'ay bevaried.

-In all cases there are a plurality of these strands arranged in side'jby side relation and preferably with the air cells of adjacent strands staggered as is generally shown in Figs. 2 and 3. 'Ihe number of strands vary according to the dimensions and resiliency desired of the core or filler in the art to adapt the I have not attempted to illustrate or describe various modiilcations which I contemplate as it is believed this disclosure will enable those skilled invention as may be desired. f

Having thus described the invention what 'is claimed as new and desired to secure by Letters Patent is:

IA resilient core material comprising a plurality of strands of resilient material disposed in generally parallel .bundled relation, each strand comprising a plurality oi.' resilient air cells integrally connected end to end, a surrounding layer of resilient fibrous material completely embracing said cellular material, said layer being of substantial depth, anda braided thread open mesh covering binding and retaining said core materials ina somewhat compacted rope-like unit'.

E. BACKNIR. 

